nsswitch/winbind_struct_protocol.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon for ntdom nss module
   5
   6    Copyright (C) Tim Potter 2000
   7    Copyright (C) Gerald Carter 2006
   8
   9    You are free to use this interface definition in any way you see
  10    fit, including without restriction, using this header in your own
  11    products. You do not need to give any attribution.
  12 */
  13
  14 #ifndef SAFE_FREE
  15 #define SAFE_FREE(x) do { if(x) {free(x); x=NULL;} } while(0)
  16 #endif
  17
  18 #ifndef FSTRING_LEN
  19 #define FSTRING_LEN 256
  20 typedef char fstring[FSTRING_LEN];
  21 #endif
  22
  23 #ifndef _WINBINDD_NTDOM_H
  24 #define _WINBINDD_NTDOM_H
  25
  26 #define WINBINDD_SOCKET_NAME "pipe"            /* Name of PF_UNIX socket */
  27
  28 /* Let the build environment override the public winbindd socket location. This
  29  * is needed for launchd support -- jpeach.
  30  */
  31 #ifndef WINBINDD_SOCKET_DIR
  32 #define WINBINDD_SOCKET_DIR  "/tmp/.winbindd"  /* Name of PF_UNIX dir */
  33 #endif
  34
  35 /*
  36  * when compiled with socket_wrapper support
  37  * the location of the WINBINDD_SOCKET_DIR
  38  * can be overwritten via an environment variable
  39  */
  40 #define WINBINDD_SOCKET_DIR_ENVVAR "WINBINDD_SOCKET_DIR"
  41
  42 #define WINBINDD_PRIV_SOCKET_SUBDIR "winbindd_privileged" /* name of subdirectory of lp_lockdir() to hold the 'privileged' pipe */
  43 #define WINBINDD_DOMAIN_ENV  "WINBINDD_DOMAIN" /* Environment variables */
  44 #define WINBINDD_DONT_ENV    "_NO_WINBINDD"
  45 #define WINBINDD_LOCATOR_KDC_ADDRESS "WINBINDD_LOCATOR_KDC_ADDRESS"
  46
  47 /* Update this when you change the interface.
  48  * 21: added WINBINDD_GETPWSID
  49  *     added WINBINDD_GETSIDALIASES
  50  * 22: added WINBINDD_PING_DC
  51  * 23: added session_key to ccache_ntlm_auth response
  52  *     added WINBINDD_CCACHE_SAVE
  53  * 24: Fill in num_entries WINBINDD_LIST_USERS and WINBINDD_LIST_GROUPS
  54  */
  55 #define WINBIND_INTERFACE_VERSION 24
  56
  57 /* Have to deal with time_t being 4 or 8 bytes due to structure alignment.
  58    On a 64bit Linux box, we have to support a constant structure size
  59    between /lib/libnss_winbind.so.2 and /lib64/libnss_winbind.so.2.
  60    The easiest way to do this is to always use 8byte values for time_t. */
  61
  62 #define SMB_TIME_T int64_t
  63
  64 /* Socket commands */
  65
  66 enum winbindd_cmd {
  67
  68         WINBINDD_INTERFACE_VERSION,    /* Always a well known value */
  69
  70         /* Get users and groups */
  71
  72         WINBINDD_GETPWNAM,
  73         WINBINDD_GETPWUID,
  74         WINBINDD_GETPWSID,
  75         WINBINDD_GETGRNAM,
  76         WINBINDD_GETGRGID,
  77         WINBINDD_GETGROUPS,
  78
  79         /* Enumerate users and groups */
  80
  81         WINBINDD_SETPWENT,
  82         WINBINDD_ENDPWENT,
  83         WINBINDD_GETPWENT,
  84         WINBINDD_SETGRENT,
  85         WINBINDD_ENDGRENT,
  86         WINBINDD_GETGRENT,
  87
  88         /* PAM authenticate and password change */
  89
  90         WINBINDD_PAM_AUTH,
  91         WINBINDD_PAM_AUTH_CRAP,
  92         WINBINDD_PAM_CHAUTHTOK,
  93         WINBINDD_PAM_LOGOFF,
  94         WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP,
  95
  96         /* List various things */
  97
  98         WINBINDD_LIST_USERS,         /* List w/o rid->id mapping */
  99         WINBINDD_LIST_GROUPS,        /* Ditto */
 100         WINBINDD_LIST_TRUSTDOM,
 101
 102         /* SID conversion */
 103
 104         WINBINDD_LOOKUPSID,
 105         WINBINDD_LOOKUPNAME,
 106         WINBINDD_LOOKUPRIDS,
 107
 108         /* Lookup functions */
 109
 110         WINBINDD_SID_TO_UID,
 111         WINBINDD_SID_TO_GID,
 112         WINBINDD_SIDS_TO_XIDS,
 113         WINBINDD_UID_TO_SID,
 114         WINBINDD_GID_TO_SID,
 115
 116         WINBINDD_ALLOCATE_UID,
 117         WINBINDD_ALLOCATE_GID,
 118         WINBINDD_SET_MAPPING,
 119         WINBINDD_REMOVE_MAPPING,
 120         WINBINDD_SET_HWM,
 121
 122         /* Miscellaneous other stuff */
 123
 124         WINBINDD_CHECK_MACHACC,     /* Check machine account pw works */
 125         WINBINDD_CHANGE_MACHACC,    /* Change machine account pw */
 126         WINBINDD_PING_DC,           /* Ping the DC through NETLOGON */
 127         WINBINDD_PING,              /* Just tell me winbind is running */
 128         WINBINDD_INFO,              /* Various bit of info.  Currently just tidbits */
 129         WINBINDD_DOMAIN_NAME,       /* The domain this winbind server is a member of (lp_workgroup()) */
 130
 131         WINBINDD_DOMAIN_INFO,   /* Most of what we know from
 132                                    struct winbindd_domain */
 133         WINBINDD_GETDCNAME,     /* Issue a GetDCName Request */
 134         WINBINDD_DSGETDCNAME,   /* Issue a DsGetDCName Request */
 135
 136         WINBINDD_SHOW_SEQUENCE, /* display sequence numbers of domains */
 137
 138         /* WINS commands */
 139
 140         WINBINDD_WINS_BYIP,
 141         WINBINDD_WINS_BYNAME,
 142
 143         /* this is like GETGRENT but gives an empty group list */
 144         WINBINDD_GETGRLST,
 145
 146         WINBINDD_NETBIOS_NAME,       /* The netbios name of the server */
 147
 148         /* find the location of our privileged pipe */
 149         WINBINDD_PRIV_PIPE_DIR,
 150
 151         /* return a list of group sids for a user sid */
 152         WINBINDD_GETUSERSIDS,
 153
 154         /* Various group queries */
 155         WINBINDD_GETUSERDOMGROUPS,
 156
 157         /* lookup local groups */
 158         WINBINDD_GETSIDALIASES,
 159
 160         /* Initialize connection in a child */
 161         WINBINDD_INIT_CONNECTION,
 162
 163         /* Blocking calls that are not allowed on the main winbind pipe, only
 164          * between parent and children */
 165         WINBINDD_DUAL_SID2UID,
 166         WINBINDD_DUAL_SID2GID,
 167         WINBINDD_DUAL_SIDS2XIDS,
 168         WINBINDD_DUAL_UID2SID,
 169         WINBINDD_DUAL_GID2SID,
 170         WINBINDD_DUAL_SET_MAPPING,
 171         WINBINDD_DUAL_REMOVE_MAPPING,
 172         WINBINDD_DUAL_SET_HWM,
 173
 174         /* Wrapper around possibly blocking unix nss calls */
 175         WINBINDD_DUAL_USERINFO,
 176         WINBINDD_DUAL_GETSIDALIASES,
 177
 178         WINBINDD_DUAL_NDRCMD,
 179
 180         /* Complete the challenge phase of the NTLM authentication
 181            protocol using cached password. */
 182         WINBINDD_CCACHE_NTLMAUTH,
 183         WINBINDD_CCACHE_SAVE,
 184
 185         WINBINDD_NUM_CMDS
 186 };
 187
 188 typedef struct winbindd_pw {
 189         fstring pw_name;
 190         fstring pw_passwd;
 191         uid_t pw_uid;
 192         gid_t pw_gid;
 193         fstring pw_gecos;
 194         fstring pw_dir;
 195         fstring pw_shell;
 196 } WINBINDD_PW;
 197
 198
 199 typedef struct winbindd_gr {
 200         fstring gr_name;
 201         fstring gr_passwd;
 202         gid_t gr_gid;
 203         uint32_t num_gr_mem;
 204         uint32_t gr_mem_ofs;   /* offset to group membership */
 205 } WINBINDD_GR;
 206
 207 /* PAM specific request flags */
 208 #define WBFLAG_PAM_INFO3_NDR            0x00000001
 209 #define WBFLAG_PAM_INFO3_TEXT           0x00000002
 210 #define WBFLAG_PAM_USER_SESSION_KEY     0x00000004
 211 #define WBFLAG_PAM_LMKEY                0x00000008
 212 #define WBFLAG_PAM_CONTACT_TRUSTDOM     0x00000010
 213 #define WBFLAG_PAM_UNIX_NAME            0x00000080
 214 #define WBFLAG_PAM_AFS_TOKEN            0x00000100
 215 #define WBFLAG_PAM_NT_STATUS_SQUASH     0x00000200
 216 #define WBFLAG_PAM_KRB5                 0x00001000
 217 #define WBFLAG_PAM_FALLBACK_AFTER_KRB5  0x00002000
 218 #define WBFLAG_PAM_CACHED_LOGIN         0x00004000
 219 #define WBFLAG_PAM_GET_PWD_POLICY       0x00008000
 220
 221 /* generic request flags */
 222 #define WBFLAG_QUERY_ONLY               0x00000020      /* not used */
 223 /* This is a flag that can only be sent from parent to child */
 224 #define WBFLAG_IS_PRIVILEGED            0x00000400      /* not used */
 225 /* Flag to say this is a winbindd internal send - don't recurse. */
 226 #define WBFLAG_RECURSE                  0x00000800
 227 /* Flag to tell winbind the NTLMv2 blob is too big for the struct and is in the
 228  * extra_data field */
 229 #define WBFLAG_BIG_NTLMV2_BLOB          0x00010000
 230
 231 #define WINBINDD_MAX_EXTRA_DATA (128*1024)
 232
 233 /* Winbind request structure */
 234
 235 /*******************************************************************************
 236  * This structure MUST be the same size in the 32bit and 64bit builds
 237  * for compatibility between /lib64/libnss_winbind.so and /lib/libnss_winbind.so
 238  *
 239  * DO NOT CHANGE THIS STRUCTURE WITHOUT TESTING THE 32BIT NSS LIB AGAINST
 240  * A 64BIT WINBINDD    --jerry
 241  ******************************************************************************/
 242
 243 struct winbindd_request {
 244         uint32_t length;
 245         enum winbindd_cmd cmd;   /* Winbindd command to execute */
 246         enum winbindd_cmd original_cmd;   /* Original Winbindd command
 247                                              issued to parent process */
 248         pid_t pid;               /* pid of calling process */
 249         uint32_t wb_flags;       /* generic flags */
 250         uint32_t flags;          /* flags relevant *only* to a given request */
 251         fstring domain_name;    /* name of domain for which the request applies */
 252
 253         union {
 254                 fstring winsreq;     /* WINS request */
 255                 fstring username;    /* getpwnam */
 256                 fstring groupname;   /* getgrnam */
 257                 uid_t uid;           /* getpwuid, uid_to_sid */
 258                 gid_t gid;           /* getgrgid, gid_to_sid */
 259                 uint32_t ndrcmd;
 260                 struct {
 261                         /* We deliberatedly don't split into domain/user to
 262                            avoid having the client know what the separator
 263                            character is. */
 264                         fstring user;
 265                         fstring pass;
 266                         char require_membership_of_sid[1024];
 267                         fstring krb5_cc_type;
 268                         uid_t uid;
 269                 } auth;              /* pam_winbind auth module */
 270                 struct {
 271                         uint8_t chal[8];
 272                         uint32_t logon_parameters;
 273                         fstring user;
 274                         fstring domain;
 275                         fstring lm_resp;
 276                         uint32_t lm_resp_len;
 277                         fstring nt_resp;
 278                         uint32_t nt_resp_len;
 279                         fstring workstation;
 280                         fstring require_membership_of_sid;
 281                 } auth_crap;
 282                 struct {
 283                     fstring user;
 284                     fstring oldpass;
 285                     fstring newpass;
 286                 } chauthtok;         /* pam_winbind passwd module */
 287                 struct {
 288                         fstring user;
 289                         fstring domain;
 290                         uint8_t new_nt_pswd[516];
 291                         uint16_t new_nt_pswd_len;
 292                         uint8_t old_nt_hash_enc[16];
 293                         uint16_t old_nt_hash_enc_len;
 294                         uint8_t new_lm_pswd[516];
 295                         uint16_t new_lm_pswd_len;
 296                         uint8_t old_lm_hash_enc[16];
 297                         uint16_t old_lm_hash_enc_len;
 298                 } chng_pswd_auth_crap;/* pam_winbind passwd module */
 299                 struct {
 300                         fstring user;
 301                         fstring krb5ccname;
 302                         uid_t uid;
 303                 } logoff;              /* pam_winbind session module */
 304                 fstring sid;         /* lookupsid, sid_to_[ug]id */
 305                 struct {
 306                         fstring dom_name;       /* lookupname */
 307                         fstring name;
 308                 } name;
 309                 uint32_t num_entries;  /* getpwent, getgrent */
 310                 struct {
 311                         fstring username;
 312                         fstring groupname;
 313                 } acct_mgt;
 314                 struct {
 315                         bool is_primary;
 316                         fstring dcname;
 317                 } init_conn;
 318                 struct {
 319                         fstring sid;
 320                         fstring name;
 321                 } dual_sid2id;
 322                 struct {
 323                         fstring sid;
 324                         uint32_t type;
 325                         uint32_t id;
 326                 } dual_idmapset;
 327                 bool list_all_domains;
 328
 329                 struct {
 330                         uid_t uid;
 331                         fstring user;
 332                         /* the effective uid of the client, must be the uid for 'user'.
 333                            This is checked by the main daemon, trusted by children. */
 334                         /* if the blobs are length zero, then this doesn't
 335                            produce an actual challenge response. It merely
 336                            succeeds if there are cached credentials available
 337                            that could be used. */
 338                         uint32_t initial_blob_len; /* blobs in extra_data */
 339                         uint32_t challenge_blob_len;
 340                 } ccache_ntlm_auth;
 341                 struct {
 342                         uid_t uid;
 343                         fstring user;
 344                         fstring pass;
 345                 } ccache_save;
 346                 struct {
 347                         fstring domain_name;
 348                         fstring domain_guid;
 349                         fstring site_name;
 350                         uint32_t flags;
 351                 } dsgetdcname;
 352
 353                 /* padding -- needed to fix alignment between 32bit and 64bit libs.
 354                    The size is the sizeof the union without the padding aligned on
 355                    an 8 byte boundary.   --jerry */
 356
 357                 char padding[1800];
 358         } data;
 359         union {
 360                 SMB_TIME_T padding;
 361                 char *data;
 362         } extra_data;
 363         uint32_t extra_len;
 364         char null_term;
 365 };
 366
 367 /* Response values */
 368
 369 enum winbindd_result {
 370         WINBINDD_ERROR,
 371         WINBINDD_PENDING,
 372         WINBINDD_OK
 373 };
 374
 375 /* Winbind response structure */
 376
 377 /*******************************************************************************
 378  * This structure MUST be the same size in the 32bit and 64bit builds
 379  * for compatibility between /lib64/libnss_winbind.so and /lib/libnss_winbind.so
 380  *
 381  * DO NOT CHANGE THIS STRUCTURE WITHOUT TESTING THE 32BIT NSS LIB AGAINST
 382  * A 64BIT WINBINDD    --jerry
 383  ******************************************************************************/
 384
 385 struct winbindd_response {
 386
 387         /* Header information */
 388
 389         uint32_t length;                      /* Length of response */
 390         enum winbindd_result result;          /* Result code */
 391
 392         /* Fixed length return data */
 393
 394         union {
 395                 int interface_version;  /* Try to ensure this is always in the same spot... */
 396
 397                 fstring winsresp;               /* WINS response */
 398
 399                 /* getpwnam, getpwuid */
 400
 401                 struct winbindd_pw pw;
 402
 403                 /* getgrnam, getgrgid */
 404
 405                 struct winbindd_gr gr;
 406
 407                 uint32_t num_entries; /* getpwent, getgrent */
 408                 struct winbindd_sid {
 409                         fstring sid;        /* lookupname, [ug]id_to_sid */
 410                         int type;
 411                 } sid;
 412                 struct winbindd_name {
 413                         fstring dom_name;       /* lookupsid */
 414                         fstring name;
 415                         int type;
 416                 } name;
 417                 uid_t uid;          /* sid_to_uid */
 418                 gid_t gid;          /* sid_to_gid */
 419                 struct winbindd_info {
 420                         char winbind_separator;
 421                         fstring samba_version;
 422                 } info;
 423                 fstring domain_name;
 424                 fstring netbios_name;
 425                 fstring dc_name;
 426
 427                 struct auth_reply {
 428                         uint32_t nt_status;
 429                         fstring nt_status_string;
 430                         fstring error_string;
 431                         int pam_error;
 432                         char user_session_key[16];
 433                         char first_8_lm_hash[8];
 434                         fstring krb5ccname;
 435                         uint32_t reject_reason;
 436                         uint32_t padding;
 437                         struct policy_settings {
 438                                 uint32_t min_length_password;
 439                                 uint32_t password_history;
 440                                 uint32_t password_properties;
 441                                 uint32_t padding;
 442                                 SMB_TIME_T expire;
 443                                 SMB_TIME_T min_passwordage;
 444                         } policy;
 445                         struct info3_text {
 446                                 SMB_TIME_T logon_time;
 447                                 SMB_TIME_T logoff_time;
 448                                 SMB_TIME_T kickoff_time;
 449                                 SMB_TIME_T pass_last_set_time;
 450                                 SMB_TIME_T pass_can_change_time;
 451                                 SMB_TIME_T pass_must_change_time;
 452                                 uint32_t logon_count;
 453                                 uint32_t bad_pw_count;
 454                                 uint32_t user_rid;
 455                                 uint32_t group_rid;
 456                                 uint32_t num_groups;
 457                                 uint32_t user_flgs;
 458                                 uint32_t acct_flags;
 459                                 uint32_t num_other_sids;
 460                                 fstring dom_sid;
 461                                 fstring user_name;
 462                                 fstring full_name;
 463                                 fstring logon_script;
 464                                 fstring profile_path;
 465                                 fstring home_dir;
 466                                 fstring dir_drive;
 467                                 fstring logon_srv;
 468                                 fstring logon_dom;
 469                         } info3;
 470                         fstring unix_username;
 471                 } auth;
 472                 struct {
 473                         fstring name;
 474                         fstring alt_name;
 475                         fstring sid;
 476                         bool native_mode;
 477                         bool active_directory;
 478                         bool primary;
 479                 } domain_info;
 480                 uint32_t sequence_number;
 481                 struct {
 482                         fstring acct_name;
 483                         fstring full_name;
 484                         fstring homedir;
 485                         fstring shell;
 486                         uint32_t primary_gid;
 487                         uint32_t group_rid;
 488                 } user_info;
 489                 struct {
 490                         uint8_t session_key[16];
 491                         uint32_t auth_blob_len; /* blob in extra_data */
 492                 } ccache_ntlm_auth;
 493                 struct {
 494                         fstring dc_unc;
 495                         fstring dc_address;
 496                         uint32_t dc_address_type;
 497                         fstring domain_guid;
 498                         fstring domain_name;
 499                         fstring forest_name;
 500                         uint32_t dc_flags;
 501                         fstring dc_site_name;
 502                         fstring client_site_name;
 503                 } dsgetdcname;
 504         } data;
 505
 506         /* Variable length return data */
 507
 508         union {
 509                 SMB_TIME_T padding;
 510                 void *data;
 511         } extra_data;
 512 };
 513
 514 #endif